Unzip to your hard drive then remove PCI Comunication Device is Other devices in device manager then click on refresh and windows should re-detect your modem when prompted, select search for best driver, then when the next screen appears you should only have the last selection ticked then browse to the location you save them good luck...! out of 19 different conexant CD I have this one seems to work on most. The one that was tasking me most, has only a label on the back which stats 1456VQH & has no FCC Number